4602/71 Eagle Street, towers above the Brisbane River in the iconic Riparian building.Source:Supplied

A renowned Sydney-Hobart millionaire yacht owner and skipper has sold his stunning Brisbane “double” apartment in the coveted Harry Seidler-designed Riparian building.

Peter Harburg, owner and skipper of Black Jack the Sydney-Hobart yacht that has broken speed records, is a very savvy commercial property investor, with multiple buildings having sold for profit in recent times.

But his luxurious Brisbane home base — which has sold for an undisclosed sum — has been more of an escape. The apartment, created by “amalgamation of two apartments”, has had a wide range of price tags over the years from $7m in 2011 to $6m in 2015 $4.32m in mid-2015 to a price guide of $5.2 to 5.6m in May this year. It was then put out to tender with a deal sealed November 23.

Black Jack owned Peter Harburg during day two of the Sydney to Hobart yacht race off the coast of Tasmania last year.Source:News Corp Australia

It covers a whopping 647 sqm, bigger than most residential blocks of land, with breathtaking views across the Brisbane River, city and surrounding suburbs.

Mr Harburg spared no expense doing up the property with a Nuvo Home Audio system, Liebherr and Gaggenau appliances, American walnut cabinetry, a light up Onyx benchtop and features, and retractable panelling separating living zones.

The views seem to go on forever.Source:Supplied

Two apartments were merged to create this large sky home.Source:Supplied

More than enough room for a butler’s pantry too in the large kitchen.Source:Supplied

It also has two living rooms, a library, a boardroom and an office.

The building is favoured among elite Queensland families with 24/7 security, a 25 metre lap pool, a gym, steam room, sauna and spa, as well as a large function room that where residents or family members have had everything from birthdays to launches to wedding receptions.

The exclusive apartments sit directly above the popular Eagle Street and all its restaurants, bars and shopping.